C#

class dbLocalDB : DataManager
{
  private System.Data.Common.DbConnectionStringBuilder BldrLocalDB = new System.Data.Common.DbConnectionStringBuilder();
 
  public System.Data.Common.DbConnectionStringBuilder ConnectionString
  {
    get { return BldrLocalDB; }
    set
    {
      BldrLocalDB.ConnectionString = XenoManager.Properties.Settings.Default.csLocalDB;
    }
  }
}

public partial class Form1 : Form
{
  dbLocalDB LocalDB = new dbLocalDB();
  
  public Form1()
  {
    InitializeComponent();
    
    //Populate textboxes
    try
    {
      tb_LocalDBServerURL.Text = LocalDB.ConnectionString["Data Source"].ToString();
      tb_LocalDBDatabase.Text = LocalDB.ConnectionString["Initial Catalog"].ToString();
      tb_LocalDBUsername.Text = LocalDB.ConnectionString["User ID"].ToString();
      tb_LocalDBPassword.Text = LocalDB.ConnectionString["Password"].ToString();
    }
    catch (Exception ex)
    {
      textBox1.Text = ex.ToString();
    }
  }
}

System.Data.Common.DbConnectionStringBuilder bldrLocalDB = new System.Data.Common.DbConnectionStringBuilder();
bldrLocalDB.ConnectionString = Properties.Settings.Default.csLocalDB;

public void Compare(DataGridView grv)
{
 grv.Sort(grv.Columns[0],ListSortDirection.Ascending);
 for ( int row = 0; row < grv.Rows.Count; row++)
 {
 for ( int col = 0; col < grv.Columns.Count; col++)
 {
     int rowx=1;
     if (grv.Rows[row].Cells[col].Value != null && grv.Rows[row].Cells[col].Value.Equals(grv.Rows[rowx].Cells[col].Value))
     {
         if (col == grv.Columns.Count - 1)
         {
             grv.Rows.RemoveAt(row);
             grv.Sort(grv.Columns[0], ListSortDirection.Descending);
         }
     }
     else
     {
         grv.FirstDisplayedScrollingRowIndex = grv.RowCount - 1;
         grv.Rows[grv.RowCount - 1].Selected = true;
     }
    }
 }
}

[OptionalField]
public Aurigma.GraphicsMill.Bitmap origStaticImage = null;

public enum Mode
        {
            Off = 0,
            On1 = 1,
            On2 = 2
        }

int ProcessTWrit(ref Byte[] wDat, ref Byte[] sDat, ref Byte[] dataCk, int theMode);

result = cr.ProcessTWrit(ref wDat, ref sDat, ref dataCk, (int)Mode.On1);